//同时发送异步请求的次数
let ajaxTimes = 0;
export const request = (params) =>{
    ajaxTimes ++;
    wx.showLoading({
      title: '加载中',
      mask:true
    })
const baseUrl = "http://localhost:8061";
return new Promise((resolve, reject) =>{
wx.request({
  url: baseUrl + params.url,
  success:(result)=>{
      resolve(result.data);
  },
  fail:(err)=>{
      reject(err);
  },
  complete:()=>{
      ajaxTimes --;
      if(ajaxTimes===0){
          wx.hideLoading();
      }
  }
})
})
}